Power issues

dokko · 11 Feb 2013 at 15:10

Having a look at a friends computer for them, it has recently started not turning on, but then very rarely it will and stay on no problem.

I thought its probably the power button, so opened it up and found the front panel on/off and tried the old screwdriver to the two pins, no luck.

So had a further look around, seems the psu has seen better days, so tried another psu, still nothing.

Now I'm totally stumped. Worst thing is they've managed to get it on and I can't even do that. Really doing my head in.

It's an acer m5800 and the motherboard a acer g45t am3

Thanks.

Admiral Huddy · 11 Feb 2013 at 15:11

edit - You've eliminated the power switch and the PSU by swaping for known working models. It could be the VRMs on the motherboard are faulty or the motherboard is/has shorted

dokko · 11 Feb 2013 at 15:37

Yeah, even pulled a power switch from an old computer now so using that. Again tested that on the old rig to make sure it turns it on and no problem.

The psu is badly dented at the back, especially where the kettle plug goes in, it goes in at a funny angle and freely moves around.

My old psu, well it hasn't been used in years and it was very whiney, wondering if that is gone as well and two wrongs are just confusing me here. Put it in an old rig and it powered it up throwing loads of mobo error codes (old epox FF code) and lights going mad, but it gave nothing to this acer am testing.

dokko · 11 Feb 2013 at 15:49

This doesn't actually do the dent justice.

Just pulled my psu unit from my own rig and it fired it up. Guessing a new PSU, shes been very lucky.